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Vulnerability record · CVE-2022-42247 · published 3 October 2022

CVE-2022-42247: Pfsense cross-site scripting vulnerability

Pfsense · Pfsense

pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into a file name.

6.1 CVSS 3.1 Medium EPSS 3.2% · top 12.2% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into a file name.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/enferas/b4ca7a4fb52e1b5e698f87e4d655a70a ExploitPatchThird Party Advisory
https://github.com/pfsense/pfsense/commit/73ca6743954ac9f35ca293e3f2af63eac20cf32e PatchThird Party Advisory
https://gist.github.com/enferas/b4ca7a4fb52e1b5e698f87e4d655a70a ExploitPatchThird Party Advisory
https://github.com/pfsense/pfsense/commit/73ca6743954ac9f35ca293e3f2af63eac20cf32e PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2025-69691Pfsense improper access control vulnerabilityNetgate pfSense CE 2.8.0 allows code execution in the XMLRPC API via pfsense.exec_php. NOTE: the Supplier disputes this because the API call is only …EPSS 0.68%9.8CVE-2023-29974Pfsense weak password requirements vulnerabilityAn issue discovered in Pfsense CE version 2.6.0 allows attackers to compromise user accounts via weak password requirements.EPSS 1.8%9.8CVE-2023-27100Netgate pfsense plus improper restriction of authentication attempts vulnerabilityImproper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software…EPSS 9.8%9.1CVE-2025-69690Pfsense deserialization of untrusted data vulnerabilityNetgate pfSense CE 2.7.2 allows code execution by using the module installer with a backup file with a serialized PHP object containing the post_rebo…EPSS 0.81%8.8CVE-2021-41282pfSense diag_routes.php sed injection allows arbitrary file writediag_routes.php in pfSense 2.5.2 passes netstat output through sed without preventing sed-specific code injection, even though escapeshellarg is used…EPSS 87%analysed8.8CVE-2016-10709Pfsense os command injection vulnerabilitypfSense before 2.3 allows remote authenticated users to execute arbitrary OS commands via a '|' character in the status_rrd_graph_img.php graph param…EPSS 34%7.5CVE-2020-19678Oisf suricata path traversal vulnerabilityDirectory Traversal vulnerability found in Pfsense v.2.1.3 and Pfsense Suricata v.1.4.6 pkg v.1.0.1 allows a remote attacker to obtain sensitive info…EPSS 3.5%7.5CVE-2011-4197Pfsense permissions and access controls vulnerabilityetc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, whi…EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2022-42247), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.